礼服
主要的
提升
深入调查
probe：v.①探索，查究；②探测 n.①探测器；②探索，深入调查
例句：The more they probed into his background, the more inflamed their suspicions would become. 句意：他们越深入调查他的背景，对他的怀疑就会越强烈。
故本题选D。
